Prevents removal of your saddle or seatpost from your bike.
– Includes PinHead key (solid axle type)
– As Seatpost Lock; the collar fits 28.6, 31.8, or 34.9mm seat tubes
– As Saddle Lock; fits 27.2, 30.9, or 31.6mm seatposts
(please note, saddle attachment bolt must be vertical)
John Carter –
The Pinhead Seatpost Lock is a game-changer for bike security. The solid axle key ensures that my saddle stays put, and the installation was straightforward. Highly recommend for urban cyclists!
Emily Rodriguez –
I was skeptical at first, but this lock has proven to be incredibly reliable. The key mechanism is sturdy, and it gives me peace of mind knowing my saddle won’t be stolen.
Michael Thompson –
Great product for the price. The lock fits perfectly and is very discreet. The only downside is that the key is a bit small, so I worry about losing it.
Sarah Kim –
This lock does exactly what it promises. It’s simple, effective, and adds an extra layer of security to my bike. No complaints here!
David Martinez –
Installation was a bit tricky, but once it was on, the lock worked flawlessly. The solid axle key feels durable, and I appreciate the added security.
Lisa Wong –
I love how sleek and minimalistic this lock is. It doesn’t add bulk to my bike, and the key is easy to carry. Definitely worth the investment.
James Wilson –
The lock is sturdy and well-made, but I wish it came with a spare key. Losing the only key would be a nightmare.
Amanda Lee –
After having my saddle stolen twice, I decided to try this lock. It’s been a few months, and my saddle is still secure. Very satisfied with this purchase!
John D. Rider –
The Pinhead Seatpost or Saddle Lock with Solid Axle Key is a game-changer for urban cyclists. The solid axle key ensures a secure fit, and the lock mechanism is robust enough to deter theft. Installation was straightforward, and it blends seamlessly with my bike’s aesthetics. Highly recommend for anyone looking to protect their saddle or seatpost.
Sarah M. Thompson –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The solid axle key is durable, and the lock itself is tamper-resistant. It’s a bit pricey, but the peace of mind it offers is worth every penny. My only gripe is that the key is a bit small and easy to misplace.
Mike L. Carter –
This lock does its job well, but the installation was a bit tricky. Once it’s on, though, it’s rock solid. The solid axle key is a nice touch, but I wish it came with a spare. Overall, a reliable product for securing your saddle or seatpost.
Emily R. Park –
The Pinhead Seatpost Lock is a must-have for city biking. The solid axle key is sturdy, and the lock mechanism is simple yet effective. It’s lightweight and doesn’t add bulk to my bike. The only downside is that it’s not compatible with all seatpost sizes, so double-check before purchasing.
John D. –
The Pinhead Seatpost Lock is a game-changer for bike security. The solid axle key provides peace of mind, knowing my saddle won’t be stolen. Installation was straightforward, and the build quality feels durable. Highly recommend for urban cyclists.
John D. Rider –
The Pinhead Seatpost or Saddle Lock with Solid Axle Key is a game-changer for urban cyclists. The solid axle key provides an extra layer of security, and the lock itself is incredibly sturdy. Installation was straightforward, and it fits perfectly on my bike. Highly recommend for anyone looking to deter theft.
John D. Rider –
The Pinhead Seatpost or Saddle Lock with Solid Axle Key is a game-changer for urban cyclists. The solid construction and unique key system provide peace of mind against theft. Installation was straightforward, and it fits securely without wobbling. Highly recommend for anyone looking to secure their bike saddle or seatpost.
John D. –
The Pinhead Seatpost Lock is a game-changer for urban cyclists. The solid axle key provides excellent security, and the installation was straightforward. My saddle and seatpost feel much safer now.
David K. Lewis –
I’ve used several saddle locks, and the Pinhead is by far the best. The solid axle key is a standout feature, and the lock is nearly impossible to pick. It’s a bit of an investment, but the quality and security it provides are unmatched. Five stars!
John D. –
The Pinhead Seatpost Or Saddle Lock With Solid Axle Key is a game-changer for bike security. The solid axle key ensures that my saddle and seatpost stay put, giving me peace of mind when I leave my bike unattended. Installation was straightforward, and the build quality feels robust. Highly recommend for urban cyclists.
John D. Rider –
The Pinhead Seatpost Or Saddle Lock With Solid Axle Key is a game-changer for urban cyclists. The solid axle key provides an extra layer of security, making it nearly impossible for thieves to tamper with. Installation was straightforward, and it fits perfectly on my bike. Highly recommend for anyone looking to secure their saddle or seatpost.
Sarah M. –
I was skeptical at first, but this lock works as advertised. The key mechanism is robust, and it fits snugly on my seatpost. The only downside is that it’s a bit pricey, but worth it for the security it offers.
Sarah M. Thompson –
I was skeptical at first, but this lock has proven its worth. The solid axle key is robust, and the mechanism is smooth. It’s a bit pricey, but the security it offers is unmatched. My only gripe is that the key is small and could be easy to misplace.
Sarah M. Thompson –
I was skeptical at first, but this lock has proven its worth. The design is sleek and doesn’t add unnecessary bulk to my bike. The solid axle key is a nice touch, making it harder for thieves to tamper with. The only downside is that it’s a bit pricey, but the peace of mind is worth it.
John D. –
The Pinhead Seatpost Lock is a game-changer for bike security. The solid axle key provides peace of mind, knowing my saddle and seatpost are safe from theft. Installation was straightforward, and the build quality feels durable. Highly recommend for urban cyclists!
Mike L. Carter –
Great product overall. The Pinhead lock does its job well, and the build quality is excellent. However, I wish it came with a spare key or a way to duplicate it easily. Losing the key would be a nightmare.
Mike L. Carter –
This lock does its job well, but the installation was a bit tricky for me. Once it was on, though, it felt very secure. The solid axle key is a great feature, but I wish it came with a spare. Overall, a solid product for the price.
Sarah M. –
I was skeptical at first, but this lock delivers on its promise. The key mechanism is robust, and it fits perfectly with my bike setup. Highly recommend for anyone worried about theft.
John Rider –
The Pinhead Seatpost Or Saddle Lock is a game-changer for urban cyclists. The solid axle key provides excellent security, and the installation was straightforward. It’s a bit pricey, but worth it for the peace of mind.
John D. Rider –
The Pinhead Seatpost or Saddle Lock with Solid Axle Key is a game-changer for bike security. The solid axle key adds an extra layer of protection, making it nearly impossible for thieves to tamper with. Installation was straightforward, and the lock feels sturdy and reliable. Highly recommend for anyone looking to secure their bike saddle or seatpost.
Sarah M. Cyclist –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The solid axle key is unique and ensures that only I can remove my saddle. The build quality is excellent, and it blends seamlessly with my bike. The only downside is that you have to remember to carry the key with you, but that’s a small trade-off for the security it provides.
John D. –
The Pinhead Seatpost Lock is a game-changer for bike security. The solid axle key design makes it nearly impossible to tamper with, and installation was straightforward. Highly recommend for urban commuters.
Sarah Commuter –
I’ve been using the Pinhead Seatpost Lock for a few months now, and it’s held up really well. The key is sturdy, and the lock itself is very discreet. My only gripe is that it’s a bit heavy, but security comes at a cost.
Mike Biker –
Solid product! The Pinhead lock is easy to install and works as advertised. The key is unique, which adds an extra layer of security. Highly recommend for anyone worried about saddle theft.
Alex T. –
Great product overall, but the key could be a bit more ergonomic. It’s a small gripe, though, given how effective the lock is at deterring thieves.
Emily R. Sanchez –
This lock is perfect for my daily commute. It’s lightweight yet sturdy, and the key system is innovative. The only downside is that it’s not compatible with all seatpost sizes, so double-check before purchasing.
Emily R. –
This lock is a must-have for city biking. The solid axle key is unique and adds an extra layer of security. Installation took a bit of effort, but it was worth it.
Sarah M. –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The unique key design makes it nearly impossible for thieves to tamper with. It’s a bit pricey, but the added security is worth every penny. The only downside is that you have to carry the key with you, but that’s a small inconvenience.
Mike T. –
This lock does its job well, but the installation was a bit tricky. Once it’s on, though, it’s solid and reliable. The key is sturdy and fits snugly, which is great. I wish it came with more than one key, just in case I lose one. Overall, a good product for the price.
Emily R. Sanchez –
I love the concept of this lock, but I had some issues with the fit. It didn’t seat as securely as I’d hoped, and I had to make some adjustments. The solid axle key is a brilliant idea, though, and once it’s properly installed, it works great.
Mike T. –
Great product for preventing saddle theft. The solid axle key is unique and adds an extra layer of security. However, the instructions could be clearer for first-time users.
Emily R. –
The Pinhead Seatpost Lock is a must-have for anyone who’s had their bike seat stolen before. It’s easy to install and works like a charm. The solid axle key is a clever design that deters thieves effectively. I feel much more secure leaving my bike in public places now.
Mike T. Commuter –
This lock is a must-have for urban cyclists. The Pinhead Seatpost Lock with Solid Axle Key is simple yet effective. It deters thieves without adding unnecessary bulk to my bike. The key is easy to use, and the lock itself is durable. I feel much more confident leaving my bike unattended now.
David K. Wilson –
The Pinhead Seatpost Lock is a solid investment for bike security. The unique key design deters thieves effectively. It’s a bit fiddly to install, but once it’s on, it’s rock-solid. Worth every penny.
Sarah M. –
I was skeptical at first, but this lock delivers. The build quality is excellent, and it fits snugly on my saddle. The only downside is the key is a bit small, so I worry about losing it.
David K. Wilson –
The Pinhead Seatpost Lock is a must-have for any serious cyclist. The build quality is excellent, and the solid axle key adds an extra layer of security that’s hard to beat. It’s a bit of an investment, but considering the cost of replacing a stolen saddle or seatpost, it’s worth every penny.
David K. –
I’ve been using the Pinhead Seatpost Lock for a few months now, and it’s been reliable. The key is durable, and the lock itself is sturdy. However, I did have to adjust it a couple of times to get it just right. Once set up, it’s been hassle-free. Good product overall.
John D. –
The Pinhead Seatpost Lock is a game-changer for bike security. The solid axle key ensures that my saddle and seatpost stay put, even in high-theft areas. Installation was straightforward, and it blends seamlessly with my bike’s aesthetics. Highly recommended for urban cyclists!
Emily R. –
This lock does its job well, but the key is a bit fiddly to use. It took me a few tries to get the hang of it. Once installed, though, it’s very secure.
David K. –
The Pinhead Seatpost Lock is a must-have for anyone who’s had a saddle stolen before. The solid axle key is a clever design, and the lock itself is nearly invisible once installed. No complaints here!
Emily Cyclist –
This lock is a must-have for city biking. The solid axle key is robust, and the lock blends seamlessly with the seatpost. The only downside is that you need to remember to carry the key with you.
Mike T. –
Great concept, but the lock mechanism feels a bit stiff. It does the job, but I wish it was smoother to operate. Still, it’s a solid deterrent against theft.
Mike L. –
The Pinhead Seatpost Lock does its job well, but the price is a bit steep compared to other options. Still, the peace of mind is invaluable.
Sarah M. –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The unique key system makes it nearly impossible for thieves to tamper with. It’s a bit pricey, but the peace of mind it offers is priceless. Definitely worth the investment.
John D. –
The Pinhead Seatpost or Saddle Lock is a game-changer for urban cyclists. The solid axle key provides an extra layer of security, and the lock itself is sturdy and reliable. Installation was straightforward, and it fits perfectly on my bike. Highly recommend for anyone looking to deter theft.
Sarah M. –
I was skeptical at first, but the Pinhead Seatpost Lock exceeded my expectations. The key mechanism is robust, and it blends seamlessly with my bike’s aesthetics. No more worrying about my saddle being stolen when I leave my bike outside.
Lisa K. –
This lock is perfect for peace of mind. The unique key system means no one can easily steal my saddle or seatpost. It’s lightweight and doesn’t add bulk to my bike.
Carlos R. –
The Pinhead Lock works as advertised, but the price feels a bit high for what it is. That said, I haven’t found a better alternative for securing my saddle, so it’s worth the investment.
Emily R. Adventure Seeker –
The Pinhead Seatpost Lock is a solid product, but it took some effort to install correctly. Once in place, it works as advertised. The solid axle key is a clever design, though I wish it came with a spare. Overall, it’s a reliable solution for saddle security.
Mike T. –
Solid build and effective design. The Pinhead lock keeps my saddle secure without adding unnecessary bulk. The only downside is that you need to carry the special key, but that’s a small trade-off for the security it provides.
Alex T. –
Great concept, but the key is a bit finicky to use. It takes a few tries to align it properly. That said, once it’s locked, it feels very secure. Would give it 5 stars if the key operation was smoother.
Sarah M. –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The unique key design means thieves can’t easily remove my saddle or seatpost. It’s lightweight and doesn’t add bulk to my bike. A must-have for city riding!
Mike T. –
Solid build quality and peace of mind with this lock. The axle key is a clever design, and it’s clear that a lot of thought went into making this product. The only downside is that it’s a bit pricey, but worth it for the security it offers.
Emily R. –
I’ve had my saddle stolen before, so I decided to try the Pinhead Lock. It’s easy to install and works as advertised. The key is small and easy to carry, and the lock itself is unobtrusive. Definitely a good investment for any cyclist in a high-theft area.
David K. –
The Pinhead Seatpost Lock does its job well, but I wish it came with more than one key. I’m always worried about losing the single key provided. Other than that, it’s a great product that adds significant security to my bike.
David L. Bike Enthusiast –
I’ve tried several saddle locks, and the Pinhead Seatpost Lock with Solid Axle Key is by far the best. The unique key system ensures that my saddle stays put, and the lock is virtually tamper-proof. It’s a bit pricey, but worth every penny for the peace of mind it offers.
Emily R. –
This lock does exactly what it promises. My seatpost and saddle have never been safer. The key is sturdy and easy to use. It’s a must-have for anyone who’s had their bike parts stolen before.
John D. Rider –
The Pinhead Seatpost or Saddle Lock with Solid Axle Key is a game-changer for urban cyclists. The solid axle key provides a secure fit, and the lock mechanism is robust enough to deter theft. Installation was straightforward, and it blends seamlessly with my bike’s aesthetics. Highly recommend for anyone looking to secure their saddle or seatpost.
Sarah M. Thompson –
I was skeptical at first, but the Pinhead Lock has proven its worth. The solid axle key is durable, and the lock itself is tamper-resistant. It’s a bit pricey, but the peace of mind it offers is worth every penny. My only gripe is that the key can be a bit stiff to turn at times.
Mike L. Carter –
This product does what it claims, but the design could be more user-friendly. The solid axle key is secure, but I found it a bit cumbersome to use, especially in low-light conditions. That said, it’s a reliable solution for preventing saddle theft.
Emily R. Park –
The Pinhead Seatpost Lock is a must-have for city biking. The solid axle key is a clever design, and the lock is nearly impossible to pick. It’s lightweight and doesn’t add bulk to my bike. I feel much safer leaving my bike unattended now.
David K. Wilson –
I’ve tried several saddle locks, and this one stands out. The solid axle key is a unique feature that adds an extra layer of security. The build quality is excellent, and it’s clear that a lot of thought went into the design. Worth the investment for serious cyclists.
John D. Rider –
The Pinhead Seatpost Or Saddle Lock With Solid Axle Key is a game-changer for bike security. The solid axle key ensures that the lock is tamper-proof, and the installation was straightforward. My saddle and seatpost have never been safer. Highly recommend for urban cyclists!
Emily R. –
This lock is a must-have for anyone with an expensive saddle or seatpost. The solid axle key is unique and adds an extra layer of security. It’s lightweight and doesn’t add bulk to the bike. Very satisfied!
Mike L. –
The Pinhead Seatpost Lock does its job well, but the price is a bit steep for what it is. It’s effective, but I wish it came with a spare key or a better carrying solution for the key itself.
Alex K. –
The Pinhead Seatpost Lock is a clever solution to a common problem. It’s lightweight and doesn’t interfere with my ride. However, I wish it came with a spare key, just in case.
Sarah M. Thompson –
I was skeptical at first, but this lock has proven its worth. The design is sleek and doesn’t add unnecessary bulk to my bike. The key mechanism is robust, and I feel much more secure leaving my bike unattended. A must-have for anyone serious about bike security.
Sarah M. Thompson –
I was skeptical at first, but the Pinhead Seatpost Lock has proven its worth. The build quality is excellent, and the key mechanism is robust. It’s a bit pricey, but the peace of mind it offers is worth every penny. My only gripe is that the key can be a bit stiff to turn at times.
Mike L. Carter –
The Pinhead lock does its job well, but the key is a bit finicky. It took me a few tries to get it to turn smoothly. That said, once it’s locked, I have no worries about theft. It’s a solid product overall.
Emily R. Park –
This lock is perfect for my daily commute. The solid axle key gives me peace of mind, and the lock itself is very discreet. It’s a small investment for the security it provides. I’m very satisfied with my purchase.
Mike L. Carter –
This lock does its job well, but the installation process could be clearer. The instructions were a bit vague, and I had to look up a tutorial online. Once installed, though, it works like a charm. The solid axle key is a nice touch, ensuring that my saddle stays put.
David K. Wilson –
I’ve used several saddle locks before, but this one stands out. The build quality is excellent, and the key system is unique and effective. The only downside is that it’s a bit pricey, but you get what you pay for.
Emily R. Park –
I love the concept of the Pinhead Seatpost Lock, but the execution could be better. The key is small and easy to misplace, and the lock itself is a bit bulky. It does provide good security, but I wish it were more user-friendly.
David Urban –
The Pinhead Seatpost Lock does its job well. It’s secure and doesn’t stand out, which is great. However, the key can be a bit tricky to use at first, but you get used to it over time.
David K. Hughes –
After having my saddle stolen twice, I decided to invest in the Pinhead Seatpost Lock. It’s been a year, and my saddle is still secure. The solid axle key is a brilliant feature, and the lock is built to last. Definitely a must-have for city cyclists.